Gas tanks

Tuesday, May 21st
TO DO
* WS/WD sensor - compare WS/WD data from tower with station.
* Change drierite fast O3/NOx.
* Tests on fast NOx with Jacques.
* NOx puff
* Build canopy tent if anchor bags are arriving in the evening.
Monday, May 20th
- Tee on Zero Air line for PTR-TOF-MS.
WS/WD sensor
I need to replace the Reed Switch.
1. Disconnect WS/WD rear of MET Controls box
2. Disconnect anemometer from tower
According to instructions:
3. Open the sensor housing
4. Disconnect the wires
TOP to BOTTOM: RED, BLACK, YELLOW, GREEN, WHITE.
5. Push switch cartridge out of its seat. Clean off any old sealant from the top plate assembly.
Done
The WS constantly increases. Something’s wrong. Jacques suggests that the sensor counts the # of rotations but doesn’t seem to convert to m/s. Something’s wrong in the VI. Problem fixed! Jacques made changes in the VI.
Daily checks
- Lab temperature = 21°C, AC temperature = 68F.
- Case temperature: fast O3 = ~22°C, fast NOx = ~17.6°C.
- Drierite OK.
- Fast O3: OK, NO flow rate OK.
- Fast NOx: OK.
- GC/MS: running, water level OK.
- Gas tanks: OK.
Inventory
- I talked to Justin (Toolik manager) about the canopy tent. We agreed that we can build it without asking BLM (quote: “better ask for forgiveness than permission”). He will let us know if BLM comes visit - if so, we will pack everything. The plan is for Anssi and I to build it tomorrow. It’s going to rain Wed/Thur/Fri so we can make sure it’s waterproof before we install instruments in it.
- O3 sonde prep unit + O3 sondes (x2) + NOAA laptop: LAB1.
- Helium tanks for balloon (balloon grade): 3 large ones + 1 smaller one.
- Kestrel in Box#2 (warm storage).
- Kestrel works with 1 AA battery.
- Cold storage (south entrance): CPS is currently using the building for construction work/storage. They’re leaving Toolik on June 6th. I’ll check with them if we can use the building before that to store the balloon.